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Amphetamine and Related Drugs

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Marquis reagent<br />

This reagent is preferably poured onto the<br />

plate because of the danger of spraying<br />

concentrated acid. Black or violet spots are<br />

given by alkaloids related to morphine. Many<br />

different colours are given with a variety of<br />

drugs<br />

Marquis Reagent: mix 1 mL of<br />

formaldehyde solution with 9 mL of sulfuric<br />

acid. Prepare daily.<br />

4/27/2009 ١٠٠

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